EP3667995B1 - Procédé de détermination et procédé d'indication de bloc de signaux de synchronisation, dispositif de réseau et dispositif terminal - Google Patents

Procédé de détermination et procédé d'indication de bloc de signaux de synchronisation, dispositif de réseau et dispositif terminal Download PDF

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Publication number
EP3667995B1
EP3667995B1 EP18845178.5A EP18845178A EP3667995B1 EP 3667995 B1 EP3667995 B1 EP 3667995B1 EP 18845178 A EP18845178 A EP 18845178A EP 3667995 B1 EP3667995 B1 EP 3667995B1
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EP
European Patent Office
Prior art keywords
synchronization signal
signal block
network device
sent
block group
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EP18845178.5A
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German (de)
English (en)
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EP3667995A4 (fr
EP3667995A1 (fr
Inventor
Pu YUAN
Jin Liu
Zhengzheng XIANG
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/60—Context-dependent security
    • H04W12/69—Identity-dependent
    • H04W12/76—Group identity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/08—User group management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a synchronization signal block indication method, a synchronization signal block determining method, a network device, and a terminal device.
  • a synchronization signal block is a signal structure defined in New Radio (New Radio, NR), and includes a primary synchronization signal (Primary Synchronization Signal, PSS), a secondary synchronization signal (Secondary Synchronization Signal, SSS), and a physical broadcast channel (Physical Broadcast Channel, PBCH).
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • PBCH Physical Broadcast Channel
  • Main functions of the PSS and the SSS are to help user equipment (User Equipment, UE) to identify a cell and synchronize with the cell.
  • the PBCH includes most basic system information, for example, a system frame number or intra-frame timing information. The UE cannot access the cell unless the UE successfully receives the synchronization signal block.
  • a synchronization signal burst set (Synchronization Signal Burst Set, SS burst set) is defined in the NR.
  • the synchronization signal burst set includes one or more synchronization signal blocks.
  • a quantity of actually transmitted synchronization signal blocks in a synchronization signal burst set is not always equal to L, and may be less than L.
  • a base station may send other information or schedule the UE to perform transmission. In this way, the base station needs to notify the UE of the actually transmitted synchronization signal blocks, so that the UE successfully receives the synchronization signal blocks.
  • SS burst set design and composition may be based on a SS burst, burst set or radio frame;
  • SS block index may be indicated with respect to SS burst, burst set or radio frame;
  • SS block index may be indicated either implicitly or explicitly using at least one of the following signals: NR-SS or NR-PBCH.
  • R1-1701530 discloses the following proposals: (1) The time index/indices of an SS block from which UE will derive symbol, slot index in a radio frame; (2) Possible mechanisms to indicate the SS block index.
  • Embodiments of the present invention provide a synchronization signal block indication method, according to claim 1, a synchronization signal block determining method, according to claim 2, a network device, according to claim 3, a terminal device, according to claim 4, and a system, to indicate a synchronization signal block sent by a network device, and to help a terminal device successfully receive the synchronization signal block.
  • the invention is set out in the appended set of claims. All embodiments and/or aspects not falling under the scope of the appended claims are to be considered merely as examples suitable for understanding the invention.
  • the synchronization signal block group indication information includes quantity information and configuration information of the synchronization signal block group sent by the network device.
  • the quantity information is used to indicate a quantity m of synchronization signal block group(s) sent by the network device.
  • the configuration information is used to indicate whether the synchronization signal block group(s) sent by the network device is the first m synchronization signal block group(s) or the last m synchronization signal block group(s).
  • the synchronization signal block indication information is bitmap information.
  • the bitmap information is used to indicate the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device.
  • the synchronization signal block group indication information includes the quantity information of the synchronization signal block group sent by the network device.
  • the quantity information is used to indicate the synchronization signal block group sent by the network device.
  • a configuration rule of the synchronization signal block group sent by the network device is predetermined.
  • the configuration rule may be predefined in a communication protocol.
  • the rule may be that the synchronization signal block group(s) sent by the network device is the first m synchronization signal block group(s), or the synchronization signal block group(s) sent by the network device is the last m synchronization signal block group(s), where m is a quantity of synchronization signal block group(s) sent by the network device.
  • m is a quantity of synchronization signal block group(s) sent by the network device.
  • the synchronization signal block group indication information includes quantity information and configuration information of the synchronization signal block group sent by the network device.
  • the quantity information is used to indicate a quantity m of synchronization signal block group(s) sent by the network device.
  • the configuration information is used to indicate whether the synchronization signal block group(s) sent by the network device is the first m synchronization signal block group(s) or the last m synchronization signal block group(s).
  • the synchronization signal block indication information includes quantity information and configuration information of the synchronization signal block sent by the network device.
  • the quantity information is used to indicate a quantity n of synchronization signal block(s) sent by the network devices in each synchronization signal block group sent by the network device.
  • the configuration information is used to indicate whether the synchronization signal block(s) sent by the network devices in each synchronization signal block group sent by the network device is the first n synchronization signal block(s) or the last n synchronization signal block(s) in the synchronization signal block group.
  • the synchronization signal block group indication information is bitmap information.
  • the bitmap information is used to indicate the synchronization signal block group sent by the network device.
  • the synchronization signal block indication information includes quantity information and configuration information of the synchronization signal block sent by the network device.
  • the quantity information is used to indicate a quantity n of synchronization signal block(s) sent by the network device in each synchronization signal block group sent by the network device.
  • the configuration information is used to indicate whether the synchronization signal block sent by the network device(s) in each synchronization signal block group sent by the network device is the first n synchronization signal block(s) or the last n synchronization signal block(s) in the synchronization signal block group.
  • the synchronization signal block indication information includes the quantity information of the synchronization signal block sent by the network device.
  • the quantity information is used to indicate the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device.
  • a configuration rule of the synchronization signal block is predetermined.
  • the configuration rule may be predefined in a communication protocol.
  • the rule may be that the synchronization signal block(s) sent by the network device in each synchronization signal block group sent by the network device is the first n synchronization signal block(s) or the last n synchronization signal block(s) in the synchronization signal block group, where n is a quantity of synchronization signal block(s) sent by the network device in each synchronization signal block group sent by the network device.
  • n is a quantity of synchronization signal block(s) sent by the network device in each synchronization signal block group sent by the network device.
  • the synchronization signal block group indication information is bitmap information.
  • the bitmap information is used to indicate the synchronization signal block group sent by the network device.
  • the synchronization signal block indication information is bitmap information.
  • the bitmap information is used to indicate the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device.
  • the synchronization signal block group indication information is carried by using a master information block (Master Information Block, MIB), and the synchronization signal block indication information is carried by using remaining system information (Remaining System Information, RMSI).
  • MIB Master Information Block
  • RMSI remaining System Information
  • the synchronization signal block group indication information is carried by using RMSI, and the synchronization signal block indication information is carried by using an MIB.
  • the synchronization signal block group indication information and the synchronization signal block indication information are carried by using an MIB.
  • the synchronization signal block group indication information and the synchronization signal block indication information are carried by using RMSI.
  • an embodiment of the present invention provides a synchronization signal block determining method.
  • the method includes:
  • the terminal device receives the synchronization signal block indication message sent by a network device, and determines, based on the synchronization signal block indication message, the synchronization signal block group sent by the network device and the synchronization signal block sent by the network device in the synchronization signal block group. Because locations of a synchronization signal block sent by the network device in the synchronization signal block groups sent by the network device are the same, the terminal device can determine all the synchronization signal block(s) sent by the network device.
  • the synchronization signal block group indication information includes quantity information and configuration information of the synchronization signal block group sent by the network device.
  • the quantity information is used to indicate a quantity m of synchronization signal block group(s) sent by the network device.
  • the configuration information is used to indicate whether the synchronization signal block group(s) sent by the network device is the first m synchronization signal block group(s) or the last m synchronization signal block group(s).
  • the synchronization signal block indication information is bitmap information.
  • the bitmap information is used to indicate the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device.
  • the terminal device determines the synchronization signal block group sent by the network device based on the quantity information and the configuration information, and determines the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device based on the bitmap information, thereby determining all the synchronization signal block(s) sent by the network device.
  • the synchronization signal block indication information includes the quantity information of the synchronization signal block sent by the network device.
  • the quantity information is used to indicate the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device.
  • a configuration rule of the synchronization signal block is predetermined.
  • the configuration rule may be predefined in a communication protocol.
  • the rule may be that the synchronization signal block(s) sent by the network device in each synchronization signal block group sent by the network device is the first n synchronization signal block(s) or the last n synchronization signal block(s) in the synchronization signal block group, where n is a quantity of synchronization signal block(s) sent by the network device in each synchronization signal block group sent by the network device.
  • n is a quantity of synchronization signal block(s) sent by the network device in each synchronization signal block group sent by the network device.
  • the synchronization signal block group indication information includes quantity information and configuration information of the synchronization signal block group sent by the network device.
  • the quantity information is used to indicate a quantity m of synchronization signal block group(s) sent by the network device.
  • the configuration information is used to indicate whether the synchronization signal block group(s) sent by the network device is the first m synchronization signal block group(s) or the last m synchronization signal block group(s).
  • the synchronization signal block indication information includes quantity information and configuration information of the synchronization signal block sent by the network device.
  • the quantity information is used to indicate a quantity n of synchronization signal block(s) sent by the network device in each synchronization signal block group sent by the network device.
  • the configuration information is used to indicate whether the synchronization signal block(s) sent by the network device in each synchronization signal block group sent by the network device is the first n synchronization signal block(s) or the last n synchronization signal block(s) in the synchronization signal block group.
  • the terminal device determines the synchronization signal block group sent by the network device based on the quantity information and the configuration information of the synchronization signal block group sent by the network device, and determines the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device based on the quantity information and the configuration information of the synchronization signal block sent by the network device, thereby determining all the synchronization signal block(s) sent by the network device.
  • the synchronization signal block group indication information is bitmap information.
  • the bitmap information is used to indicate the synchronization signal block group sent by the network device.
  • the synchronization signal block indication information includes quantity information and configuration information of the synchronization signal block sent by the network device.
  • the quantity information is used to indicate a quantity n of synchronization signal block(s) sent by the network device in each synchronization signal block group sent by the network device.
  • the configuration information is used to indicate whether the synchronization signal block(s) sent by the network device in each synchronization signal block group sent by the network device is the first n synchronization signal block(s) or the last n synchronization signal block(s) in the synchronization signal block group.
  • the terminal device determines the synchronization signal block group sent by the network device based on the bitmap information, and determines the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device based on the quantity information and the configuration information, thereby determining all the synchronization signal block(s) sent by the network device.
  • the synchronization signal block indication information includes the quantity information of the synchronization signal block sent by the network device.
  • the quantity information is used to indicate the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device.
  • a configuration rule of the synchronization signal block is predetermined.
  • the configuration rule may be predefined in a communication protocol.
  • the rule may be that the synchronization signal block(s) sent by the network device in each synchronization signal block group sent by the network device is the first n synchronization signal block(s) or the last n synchronization signal block(s) in the synchronization signal block group, where n is a quantity of synchronization signal block(s) sent by the network device in each synchronization signal block group sent by the network device.
  • n is a quantity of synchronization signal block(s) sent by the network device in each synchronization signal block group sent by the network device.
  • the synchronization signal block group indication information is bitmap information.
  • the synchronization signal block group bitmap information is used to indicate the synchronization signal block group sent by the network device.
  • the synchronization signal block indication information is bitmap information.
  • the synchronization signal block bitmap information is used to indicate the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device.
  • the terminal device determines the synchronization signal block group sent by the network device based on the synchronization signal block group bitmap information, and determines the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device based on the synchronization signal block bitmap information, thereby determining all the synchronization signal block(s) sent by the network device.
  • the synchronization signal block group indication information is carried by using a master information block MIB, and the synchronization signal block indication information is carried by using remaining system information RMSI.
  • the synchronization signal block group indication information is carried by using RMSI, and the synchronization signal block indication information is carried by using an MIB.
  • the synchronization signal block group indication information and the synchronization signal block indication information are carried by using an MIB.
  • the synchronization signal block group indication information and the synchronization signal block indication information are carried by using RMSI.
  • an embodiment of the present invention provides a network device.
  • the network device has a function of implementing a behavior of the network device in the foregoing method.
  • the function may be implemented by hardware, or may be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the foregoing function.
  • the network device may be a base station.
  • an embodiment of the present invention provides a terminal device.
  • the terminal device has a function of implementing a behavior of the terminal device in the foregoing method.
  • the function may be implemented by hardware, or may be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the foregoing function.
  • the terminal device may be user equipment.
  • an embodiment of the present invention provides a network device.
  • a structure of the network device includes a processor and a transmitter.
  • the processor is configured to support the network device in performing a corresponding function in the foregoing method, for example, generating or processing data and/or information in the foregoing method.
  • the transmitter is configured to support the network device in sending the data, the information, or an instruction in the foregoing method to the terminal device, for example, sending the synchronization signal block indication message.
  • the network device may further include a receiver. The receiver is configured to receive information or an instruction sent by the terminal device.
  • the network device may further include a communications unit.
  • the communications unit is configured to support the network device in communicating with another network side device, for example, receiving information or an instruction sent by a network side device, and/or sending information or an instruction to another network side device.
  • the structure of the network device may further include a memory.
  • the memory is configured to be coupled to the processor, and store a program instruction and data necessary to the network device.
  • an embodiment of the present invention provides a terminal device.
  • a structure of the terminal device includes a processor and a receiver.
  • the processor is configured to support the terminal device in performing a corresponding function in the foregoing method, for example, generating or processing data and/or information in the foregoing method.
  • the receiver is configured to support the terminal device in receiving the data and/or information in the foregoing method.
  • the structure of the terminal device may further include a transmitter, configured to send required information or a required instruction to the network device.
  • the terminal device may further include a communications unit.
  • the communications unit is configured to support the terminal device in communicating with another network side device, for example, receiving information or an instruction sent by a network side device, and/or sending information or an instruction to another network side device.
  • the structure of the terminal device may further include a memory.
  • the memory is configured to be coupled to the processor, and store a program instruction and data necessary to the terminal device.
  • an embodiment of the present invention provides a communications system.
  • the system includes the network device and the terminal device according to the foregoing aspects.
  • this application provides a computer storage medium, configured to store a computer software instruction used by the foregoing network device, including a program designed for executing the foregoing aspect.
  • this application provides a computer storage medium, configured to store a computer software instruction used by the foregoing terminal device, including a program designed for executing the foregoing aspect.
  • this application provides a chip system.
  • the chip system includes a processor, configured to support a network device in implementing a function according to the foregoing aspect, for example, generating or processing data and/or information in the foregoing method.
  • the chip system further includes a memory.
  • the memory is configured to store a program instruction and data necessary to the network device.
  • the chip system may include a chip, or may include a chip and another discrete device.
  • this application provides a chip system.
  • the chip system includes a processor, configured to support a terminal device in implementing a function according to the foregoing aspect, for example, receiving or processing data and/or information in the foregoing method.
  • the chip system further includes a memory.
  • the memory is configured to store a program instruction and data necessary to the terminal device.
  • the chip system may include a chip, or may include a chip and another discrete device.
  • the network device indicates, by using the synchronization signal block indication message, the synchronization signal block group sent by the network device and the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device. Because the locations of the synchronization signal block sent by the network devices in all the synchronization signal block groups sent by the network device are the same, the terminal device may determine, based on the synchronization signal block indication message, all the synchronization signal blocks actually sent by the network device, to successfully receive the synchronization signal blocks.
  • FIG. 1 is a schematic diagram of a system applied in an embodiment of the present invention.
  • the system 100 may include a network device 102 and terminal devices 104, 106, 108, 110, 112 and 114.
  • the network device and the terminal devices are connected in a wireless manner.
  • FIG. 1 is described merely by using an example in which the system includes one network device. However, this embodiment of the present invention is not limited thereto.
  • the system may alternatively include more network devices.
  • the system may also include more terminal devices.
  • the system may also be referred to as a network. This is not limited in this embodiment of the present invention.
  • the embodiments are described with reference to a terminal device in this specification.
  • the terminal device may refer to user equipment (User Equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile console, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communications device, a user agent, or a user apparatus.
  • UE User Equipment
  • UE User Equipment
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device having a wireless communication function, a computing device, another processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a future 5G network, a terminal device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), or the like.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the terminal device may also be a wearable device.
  • a wearable device may also be referred to as a wearable intelligent device, and is a general term of wearable devices, such as glasses, gloves, watches, clothes, and shoes, that are developed by applying wearable technologies in intelligent designs of daily wear.
  • a wearable device is a portable device that can be directly worn on a body or integrated into clothes or an accessory of a user.
  • a wearable device is not merely a hardware device, but is used to implement a powerful function through software support, data interaction, and cloud interaction.
  • Generalized wearable intelligent devices include full-featured and large-size devices that can implement complete or partial functions without depending on smartphones, such as smart watches or smart glasses, and devices that focus on only one type of application and need to work with other devices such as smartphones, such as various smart bracelets or smart jewelry for monitoring physical signs.
  • the network device may be a device for communicating with the terminal device.
  • the network device may be a base transceiver station (Base Transceiver Station, BTS) in a Global System for Mobile Communications (Global System for Mobile communications, GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA), or may be a NodeB (NodeB, NB) in a Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, WCDMA) system, or may be an evolved NodeB (Evolved Node B, eNB or eNodeB) in a Long Term Evolution (Long Term Evolution, LTE) system, or may be a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN) scenario.
  • the network device may be a relay node, an access point, an in-vehicle device, a wearable device, a network device in a future 5G network, a network device in a future evolved PLM
  • the network device provides a service for a cell
  • the terminal device communicates with the network device by using a transmission resource (for example, a frequency domain resource or a spectrum resource) used by the cell.
  • the cell may be a cell corresponding to the network device (for example, a base station).
  • the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell (small cell).
  • the small cell herein may include: a metro cell (Metro cell), a micro cell (Micro cell), a pico cell (Pico cell), a femto cell (Femto cell), and the like. These small cells have features of small coverage and low transmit power, and are suitable for providing high-speed data transmission services.
  • the cell may alternatively be a hypercell (Hypercell).
  • one network device may be divided into one centralized unit (Centralized Unit, CU) and a plurality of transmission reception points (Transmission Reception Point, TRP)/distributed units (Distributed Unit, DU).
  • a bandwidth based unit (Bandwidth Based Unit, BBU) of the network device is reconstructed into a DU and CU functional entity.
  • BBU Bandwidth Based Unit
  • the CU can process a wireless high-layer protocol stack function, such as a Radio Resource Control (Radio Resource Control, RRC) layer or a Packet Data Convergence Protocol (Packet Data Convergence Protocol, PDCP) layer, and even can support some core network functions in sinking to an access network.
  • RRC Radio Resource Control
  • PDCP Packet Data Convergence Protocol
  • the access network is termed as an edge computing network, and can meet higher network delay requirements of a future communications network for emerging services such as video, online shopping, and virtual/augmented reality.
  • the DU may mainly process a physical layer function and a layer 2 function with a higher real-time requirement.
  • a radio remote unit Radio Remote Unit, RRU
  • some physical layer functions of the DU may be moved up to the RRU, with miniaturization of the RRU, and even more radically, the DU may be combined with the RRU.
  • the CU may be deployed in a centralized manner.
  • DU deployment depends on an actual network environment. In a core urban area with high traffic density and small station spacing, in a region with limited computer room resources, such as a university or a large-scale performance venue, the DU may also be deployed in a centralized manner. In an area with sparse traffic and relatively large station spacing, such as a suburban county or a mountainous area, the DU may be deployed in a distributed manner.
  • a synchronization signal block (Synchronization Signal block, SS block, SSB) is a signal structure defined in an NR wireless network. The following briefly describes the synchronization signal block with reference to FIG. 2 .
  • each synchronization signal block includes a primary synchronization signal (Primary Synchronization Signal, PSS) of one orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbol, a secondary synchronization signal (Secondary Synchronization Signal, SSS) of one symbol, and a physical broadcast channel (Physical Broadcast Channel, PBCH) of two symbols.
  • PSS Primary Synchronization Signal
  • SSS Orthogonal Frequency Division Multiplexing
  • PBCH Physical Broadcast Channel
  • a symbol and a subcarrier respectively represent a granularity unit, in time domain and in frequency domain, of a time-frequency resource for transmitting a signal, and may have meanings in a current communications system, or may have meanings in a future communications system. Moreover, if names of the symbol and the subcarrier in the future communications system change, the symbol and the subcarrier may also be changed to the name in the future communications system.
  • a synchronization signal block group may also be referred to as a synchronization signal burst (Synchronization Signal Burst, SS burst). If a name of the synchronization signal block group in the future communications system changes, the synchronization signal block group may also be changed to the name in the future communications system.
  • a synchronization signal burst Synchronization Signal Burst, SS burst
  • a maximum quantity of synchronization signal block(s) that can be sent by the network device in a transmission period of a synchronization signal is a determined value.
  • a maximum quantity of synchronization signal block(s) included in a synchronization signal burst set is determined.
  • the maximum quantity of synchronization signal block(s) included in the synchronization signal burst set is denoted by L.
  • L the maximum quantity of synchronization signal block(s) included in the synchronization signal burst set.
  • a quantity of synchronization signal blocks sent by the network device may be less than the maximum quantity, for example, less than 64.
  • the network device may transmit other data by using a time-frequency resource that is not used for transmitting a synchronization signal block, or schedule the terminal device to perform transmission.
  • the network device needs to notify the terminal device of synchronization signal block(s) sent by the network device, so that the terminal device can receive the synchronization signal block(s) on an accurate time-frequency resource.
  • the network device indicates the synchronization signal block(s) sent by the network device based on synchronization signal block group(s).
  • synchronization signal block group(s) The following briefly describes possible grouping manners of synchronization signal blocks.
  • a synchronization signal block burst set includes a maximum quantity L, being 64, of synchronization signal blocks.
  • Manner 1 The 64 synchronization signal blocks are divided into 16 synchronization signal block groups. Each synchronization signal block group includes four synchronization signal blocks. Sequence numbers of the 16 synchronization signal block groups are sequentially 0 to 15, and may be represented by using 4-bit information. Sequence numbers of the four synchronization signal blocks included in each synchronization signal block group are sequentially 0 to 3, and may be represented by using 2-bit information.
  • Manner 2 The 64 synchronization signal blocks are divided into eight synchronization signal block groups. Each synchronization signal block group includes eight synchronization signal blocks. Sequence numbers of the eight synchronization signal block groups are sequentially 0 to 7, and may be represented by using 3-bit information. Sequence numbers of the eight synchronization signal blocks included in each synchronization signal block group are sequentially 0 to 7, and may be represented by using 3-bit information.
  • Manner 3 The 64 synchronization signal blocks are divided into four synchronization signal block groups. Each synchronization signal block group includes 16 synchronization signal blocks. Sequence numbers of the four synchronization signal block groups are sequentially 0 to 3, and may be represented by using 2-bit information. Sequence numbers of the 16 synchronization signal blocks included in each synchronization signal block group are sequentially 0 to 15, and may be represented by using 4-bit information.
  • the foregoing grouping manners are examples. Based on the foregoing grouping principle, there may be another grouping manner. For example, the 64 synchronization signal blocks are divided into 32 groups. Moreover, a sequence number of each synchronization signal block in the synchronization signal block burst set may be determined based on a sequence number of a synchronization signal block group to which the synchronization signal block belongs and a sequence number of the synchronization signal block in the synchronization signal block group. Using the foregoing grouping manner 2 as an example, a sequence number of the synchronization signal block group 1 may be represented as 001, and a sequence number of the synchronization signal block 2 in the synchronization signal block group 1 may be represented as 010.
  • a sequence number of the synchronization signal block 2 in the synchronization signal block group 1 is 001010 (a binary value of the sequence number of the synchronization signal block group is used as a higher order, and a binary value of the sequence number of the synchronization signal block is used as a lower order) in the synchronization signal burst.
  • the sequence number of the synchronization signal block 2 in the synchronization signal block group 1 is 10 in the synchronization signal burst set.
  • a sequence number of the synchronization signal block group 7 may be represented as 111, and a sequence number of the synchronization signal block 2 in the synchronization signal block group 7 may be represented as 010.
  • a sequence number of the synchronization signal block 2 in the synchronization signal block group 7 is 111010 in the synchronization signal burst set.
  • the sequence number of the synchronization signal block 2 in the synchronization signal block group 7 is 58 in the synchronization signal burst set.
  • a higher order in a binary value of the sequence number of each synchronization signal block in the synchronization signal block burst set is a binary value of the sequence number of the synchronization signal block group to which the synchronization signal block belongs
  • a lower order in the binary value of the sequence number of each synchronization signal block in the synchronization signal block burst set is a binary value of the sequence number of the synchronization signal block in the synchronization signal block group.
  • locations of a synchronization signal block sent by the network device in synchronization signal block groups sent by the network device are the same.
  • that the locations are the same may also mean that sequence numbers of the synchronization signal block in the synchronization signal block groups sent by the network device are the same.
  • sequence numbers of synchronization signal blocks sent by the network device in the synchronization signal block group 0 are 0, 1, 2, and 3
  • sequence numbers of synchronization signal blocks sent by the network device in the synchronization signal block group 1 are 0, 1, 2, and 3.
  • locations of a synchronization signal block sent by the network device in the two synchronization signal block groups are the same.
  • the synchronization signal blocks sent by the network device in each of the two synchronization signal block groups are the first four synchronization signal blocks in the sent synchronization signal block group.
  • sequence numbers of synchronization signal blocks sent by the network device in the synchronization signal block group 0 are 0, 2, 4, and 6
  • sequence numbers of synchronization signal blocks sent by the network device in the synchronization signal block group 1 are 0, 2, 4, and 6.
  • locations of a synchronization signal block sent by the network device in the two synchronization signal block groups are also the same. It may be understood that the sequence numbers of the synchronization signal blocks sent by the network device in each synchronization signal block group sent by the network device may be consecutive or may be non-consecutive.
  • FIG. 3 is a schematic interaction flowchart of a synchronization signal block indication method 300 according to an embodiment of the present invention.
  • a network device in FIG. 3 may be the network device 102 in the system shown in FIG. 1 .
  • the terminal device may be the terminal devices 104, 106, 108, 110, 112, and 114 in the system shown in FIG. 1 .
  • quantities of network devices and terminal devices may not be limited to examples in this embodiment and another embodiment. No further details are provided below.
  • the network device generates a synchronization signal block indication message, where the synchronization signal block indication message includes synchronization signal block group indication information and synchronization signal block indication information, the synchronization signal block group indication information is used to indicate a synchronization signal block group sent by the network device, the synchronization signal block indication information is used to indicate a synchronization signal block sent by the network device in each synchronization signal block group sent by the network device, and locations of a synchronization signal block sent by the network device in synchronization signal block groups sent by the network device are the same.
  • the synchronization signal block group indication information includes quantity information and configuration information of the synchronization signal block group sent by the network device.
  • the quantity information is used to indicate a quantity m of synchronization signal block group(s) sent by the network device.
  • the configuration information is used to indicate whether the synchronization signal block group(s) sent by the network device is the first m synchronization signal block group(s) or the last m synchronization signal block group(s) of all synchronization signal block groups.
  • the synchronization signal block indication information may be bitmap information. The bitmap information is used to indicate the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device.
  • the network device may indicate the synchronization signal block group sent by the network device by using the quantity information and the configuration information of the synchronization signal block group, and indicate, by using synchronization signal block bitmap information, the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device, thereby indicating, to the terminal device, all synchronization signal block(s) sent by the network device.
  • the quantity information of the synchronization signal block group may be 3-bit information, for example, may be 100, and an example of the configuration information of the synchronization signal block group may be described by using Table 1, and may be 1-bit information, for example, may be 0.
  • a quantity of synchronization signal block groups sent by the network device is four, and the four synchronization signal block groups are the first four synchronization signal block groups, namely, synchronization signal block groups 0, 1, 2, and 3, of all synchronization signal block groups.
  • the synchronization signal block bitmap information may be a bit sequence.
  • the bit sequence has a length that is equal to a quantity of synchronization signal block(s) in each synchronization signal block group, and each bit in the bit sequence corresponds to one synchronization signal block. If a value of the bit is 1, it indicates that the corresponding synchronization signal block is sent. If the value of the bit is 0, it indicates that the corresponding synchronization signal block is not sent.
  • the synchronization signal block bitmap information may be an 8-bit sequence, for example, may be 10100000.
  • the synchronization signal blocks sent by the network device in each synchronization signal block group sent by the network device are the first synchronization signal block and the third synchronization signal block, namely, a synchronization signal block 0 and a synchronization signal block 2.
  • the terminal device may determine that synchronization signal block groups sent by the network device are the first four synchronization signal block groups, namely, synchronization signal block groups 0, 1, 2, and 3, of all synchronization signal block groups.
  • Synchronization signal blocks sent by the network device in each synchronization signal block group sent by the network device are the first synchronization signal block and the third synchronization signal block, namely, a synchronization signal block 0 and the synchronization signal block 2.
  • the quantity of synchronization signal block group(s) may not be in a one-to-one correspondence to the binary value corresponding to bit information.
  • a corresponding quantity of synchronization signal block groups may be eight. In other words, all synchronization signal block groups are sent.
  • a correspondence between the quantity of synchronization signal block group(s) and the binary value corresponding to the bit information may be determined depending on an actual need. This is not limited herein.
  • Manner 1 Indication of the quantity information by the network device needs 4 bits, indication of the configuration information needs 1 bit, and indication of the bitmap information needs 4 bits.
  • the overheads of the network device for indicating the synchronization signal blocks sent by the network device are 9 bits.
  • Manner 2 Indication of the quantity information by the network device needs 3 bits, indication of the configuration information needs 1 bit, and indication of the bitmap information needs 8 bits.
  • the overheads of the network device for indicating the synchronization signal blocks sent by the network device are 12 bits.
  • Manner 3 Indication of the quantity information by the network device needs 2 bits, indication of the configuration information needs 1 bit, and indication of the bitmap information needs 16 bits. In such a grouping manner, the overheads of the network device for indicating the synchronization signal blocks sent by the network device are 19 bits. Table 1 0 Send the first m synchronization signal block groups 1 Send the last m synchronization signal block groups
  • the synchronization signal block group indication information includes the quantity information of the synchronization signal block group sent by the network device.
  • the quantity information is used to indicate the synchronization signal block group sent by the network device.
  • a configuration rule of the synchronization signal block group sent by the network device is predetermined.
  • the configuration rule may be predefined in a communication protocol.
  • the rule may be that the synchronization signal block group(s) sent by the network device is the first m synchronization signal block group(s), or the synchronization signal block group(s) sent by the network device is the last m synchronization signal block group(s), where m is a quantity of synchronization signal block group(s) sent by the network device.
  • m is a quantity of synchronization signal block group(s) sent by the network device.
  • the synchronization signal block group indication information includes quantity information and configuration information of the synchronization signal block group sent by the network device.
  • the quantity information is used to indicate a quantity m of synchronization signal block group(s) sent by the network device.
  • the configuration information is used to indicate whether the synchronization signal block group(s) sent by the network device is the first m synchronization signal block group(s) or the last m synchronization signal block group(s) of all synchronization signal block group(s).
  • the synchronization signal block indication information includes quantity information and configuration information of the synchronization signal block sent by the network device.
  • the quantity information is used to indicate a quantity n of synchronization signal block(s) sent by the network device in each synchronization signal block group sent by the network device.
  • the configuration information is used to indicate whether the synchronization signal block(s) sent by the network device in each synchronization signal block group sent by the network device is the first n synchronization signal block(s) or the last n synchronization signal block(s) in the synchronization signal block group.
  • the synchronization signal block(s) sent by the network device in each synchronization signal block group sent by the network device is indicated by using the quantity information and the configuration information.
  • the quantity information of the synchronization signal block group may be 3-bit information, for example, may be 100, and an example of the configuration information of the synchronization signal block group may be described by using Table 1, and may be 1-bit information, for example, may be 1.
  • the quantity information of the synchronization signal block may be 3-bit-information, for example, may be 010, and an example of the configuration information of the synchronization signal block may be described by using Table 2, and may be 1-bit information, for example, may be 0.
  • a quantity of synchronization signal block groups sent by the network device is four, and the four synchronization signal block groups are the last four synchronization signal block groups, namely, synchronization signal block group 4, 5, 6, and 7, of all synchronization signal block groups.
  • a quantity of synchronization signal block sent by the network devices in each synchronization signal block group sent by the network device is two, and the two synchronization signal blocks are the first two synchronization signal blocks, namely, a synchronization signal block 0 and a synchronization signal block 1, in the synchronization signal block group.
  • the terminal device may determine that synchronization signal block groups sent by the network device are the last four synchronization signal block groups, namely, synchronization signal block groups 4, 5, 6, and 7, of all the synchronization signal block groups, a quantity of synchronization signal blocks sent by the network device in each synchronization signal block group sent by the network device is two, and the two synchronization signal blocks are the first two synchronization signal blocks, namely, the synchronization signal block 0 and the synchronization signal block 1, in the synchronization signal block group.
  • the quantity of synchronization signal block group may not be in a one-to-one correspondence to the binary value corresponding to bit information.
  • a corresponding quantity of synchronization signal block groups may be eight. In other words, all synchronization signal block groups are sent.
  • a correspondence between the quantity of synchronization signal block group(s) and the binary value corresponding to the bit information may be determined depending on an actual need. This is not limited herein.
  • the quantity of synchronization signal block(s) may not be in a one-to-one correspondence to the binary value corresponding to bit information.
  • a corresponding quantity of synchronization signal blocks may be eight.
  • all the synchronization signal blocks in the synchronization signal block groups sent by the network device are sent.
  • a correspondence between the quantity of synchronization signal block(s) and the binary value corresponding to the bit information may also be determined depending on an actual need. This is not limited herein.
  • Manner 1 Indication of the quantity information of the synchronization signal block group sent by the network device by the network device needs 4 bits, and indication of the configuration information needs 1 bit. Indication of the quantity information of the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device needs 2 bits, and indication of the configuration information needs 1 bit. In such a grouping manner, the overheads of the network device for indicating the synchronization signal block sent by the network device are 8 bits.
  • Manner 2 Indication of the quantity information of the synchronization signal block group sent by the network device by the network device needs 3 bits, and indication of the configuration information needs 1 bit. Indication of the quantity information of the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device needs 3 bits, and indication of the configuration information needs 1 bit. In such a grouping manner, the overheads of the network device for indicating the synchronization signal block sent by the network device are 8 bits.
  • Manner 3 Indication of the quantity information of the synchronization signal block group sent by the network device by the network device needs 2 bits, and indication of the configuration information needs 1 bit. Indication of the quantity information of the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device needs 4 bits, and indication of the configuration information needs 1 bit. In such a grouping manner, the overheads of the network device for indicating the synchronization signal block sent by the network device are 8 bits. Table 2 0 Send the first n synchronization signal blocks 1 Send the last n synchronization signal blocks
  • the synchronization signal block group indication information is bitmap information.
  • the synchronization signal block group bitmap information is used to indicate the synchronization signal block group sent by the network device.
  • the synchronization signal block indication information may also be bitmap information.
  • the synchronization signal block bitmap information is used to indicate the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device.
  • the synchronization signal block group bitmap information may be a bit sequence. The bit sequence has a length that is equal to a quantity of synchronization signal block group(s), and each bit in the bit sequence corresponds to one synchronization signal block group.
  • the synchronization signal block group bitmap information may be an 8-bit sequence, for example, may be 10100000.
  • the synchronization signal block groups sent by the network device are the first synchronization signal block group and the third synchronization signal block group, namely, a synchronization signal block group 0 and a synchronization signal block group 2.
  • the synchronization signal block bitmap information may also be an 8-bit sequence, for example, may be 11000000.
  • the synchronization signal block sent by the network devices in each synchronization signal block group sent by the network device are the first synchronization signal block and the second synchronization signal block, namely, a synchronization signal block 0 and a synchronization signal block 1.
  • the terminal device may determine that synchronization signal block groups sent by the network device are the first synchronization signal block group and the third synchronization signal block group, namely, the synchronization signal block group 0 and the synchronization signal block group 2, and the synchronization signal blocks sent by the network device in each synchronization signal block group sent by the network device are the first synchronization signal block and the second synchronization signal block, namely, the synchronization signal block 0 and the synchronization signal block 1.
  • Manner 1 Indication of the synchronization signal block group bitmap information by the network device needs 16 bits, and indication of the synchronization signal block bitmap information needs 4 bits. In such a grouping manner, the overheads of the network device for indicating the synchronization signal block sent by the network device are 20 bits.
  • Manner 2 Indication of the synchronization signal block group bitmap information by the network device needs 8 bits, and indication of the synchronization signal block bitmap information needs 8 bits.
  • the overheads of the network device for indicating the synchronization signal block sent by the network device are 16 bits.
  • Manner 3 Indication of the synchronization signal block group bitmap information by the network device needs 4 bits, and indication of the synchronization signal block bitmap information needs 16 bits. In such a grouping manner, the overheads of the network device for indicating the synchronization signal block sent by the network device are 20 bits.
  • the synchronization signal block group indication information is bitmap information.
  • the synchronization signal block group bitmap information is used to indicate the synchronization signal block group sent by the network device.
  • the synchronization signal block indication information includes quantity information and configuration information of the synchronization signal block sent by the network device.
  • the quantity information is used to indicate a quantity n of synchronization signal block(s) sent by the network device in each synchronization signal block group sent by the network device.
  • the configuration information is used to indicate whether the synchronization signal block(s) sent by the network device in each synchronization signal block group sent by the network device is the first n synchronization signal block(s) or the last n synchronization signal block(s) in the synchronization signal block group.
  • the synchronization signal block group bitmap information may be a bit sequence.
  • the bit sequence has a length that is equal to a quantity of synchronization signal block group(s), and each bit in the bit sequence corresponds to one synchronization signal block group. If a value of the bit is 1, it indicates that the corresponding synchronization signal block group is sent. If the value of the bit is 0, it indicates that the corresponding synchronization signal block group is not sent.
  • the synchronization signal block group bitmap information may be an 8-bit sequence, for example, may be 11000000.
  • the quantity information of the synchronization signal block sent by the network device may be 3-bit information, for example, may be 010, and an example of the configuration information of the synchronization signal block may be described by using Table 2, and may be 1-bit information, for example, may be 1.
  • synchronization signal block groups sent by the network device are the first synchronization signal block group and the second synchronization signal block group, namely, a synchronization signal block group 0 and a synchronization signal block group 1.
  • a quantity of synchronization signal blocks sent by the network device in each synchronization signal block group sent by the network device is two, and the two synchronization signal blocks are the last two synchronization signal blocks, namely, a synchronization signal block 6 and a synchronization signal block 7, in the synchronization signal block group.
  • the terminal device may determine that synchronization signal block groups sent by the network device are the first synchronization signal block group and the second synchronization signal block group, namely, a synchronization signal block group 0 and a synchronization signal block group 1, the quantity of synchronization signal blocks sent by the network device in each synchronization signal block group sent by the network device is two, and the two synchronization signal blocks are the last two synchronization signal blocks, namely, a synchronization signal block 6 and a synchronization signal block 7, in the synchronization signal block group.
  • the quantity of synchronization signal block(s) may not be in a one-to-one correspondence to the binary value corresponding to bit information.
  • a corresponding quantity of synchronization signal blocks may be eight.
  • all the synchronization signal blocks in the synchronization signal block groups sent by the network device are sent.
  • a correspondence between the quantity of synchronization signal blocks and the binary value corresponding to the bit information may be determined depending on an actual need. This is not limited herein.
  • Manner 1 Indication of the bitmap information of the synchronization signal block group(s) by the network device needs 16 bits, indication of the quantity information of the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device needs 2 bits, and indication of the configuration information needs 1 bit. In such a grouping manner, the overheads of the network device for indicating the synchronization signal block sent by the network device are 19 bits.
  • Manner 2 Indication of the bitmap information of the synchronization signal block group(s) by the network device needs 8 bits, indication of the quantity information of the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device needs 3 bits, and indication of the configuration information needs 1 bit.
  • the overheads of the network device for indicating the synchronization signal block sent by the network devices are 12 bits.
  • Manner 3 Indication of the bitmap information of the synchronization signal block group(s) by the network device needs 4 bits, indication of the quantity information of the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device needs 4 bits, and indication of the configuration information needs 1 bit.
  • the overheads of the network device for indicating the synchronization signal block sent by the network devices are 9 bits.
  • the synchronization signal block indication information includes the quantity information of the synchronization signal block sent by the network device.
  • the quantity information is used to indicate the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device.
  • a configuration rule of the synchronization signal block is predetermined.
  • the configuration rule may be predefined in a communication protocol.
  • the rule may be that the synchronization signal block(s) sent by the network device in each synchronization signal block group sent by the network device is the first n synchronization signal block(s) or the last n synchronization signal block(s) in the synchronization signal block group, where n is a quantity of synchronization signal block(s) sent by the network device in each synchronization signal block group sent by the network device.
  • n is a quantity of synchronization signal block(s) sent by the network device in each synchronization signal block group sent by the network device.
  • the network device sends the synchronization signal block indication message.
  • the network device sends the synchronization signal block indication message.
  • the synchronization signal block indication message includes the synchronization signal block group indication information and the synchronization signal block indication information.
  • the synchronization signal block group indication information is carried by using an MIB, and the synchronization signal block indication information is carried by using RMSI.
  • the synchronization signal block group indication information is bitmap information, and the synchronization signal block indication information is also bitmap information
  • the 8-bit synchronization signal block group indication information is carried by using an MIB
  • the 8-bit synchronization signal block indication information is carried by using RMSI.
  • the synchronization signal block group indication information is carried by using RMSI, and the synchronization signal block indication information is carried by using an MIB.
  • the synchronization signal block group indication information is bitmap information
  • the synchronization signal block indication information is quantity information and configuration information
  • the 8-bit synchronization signal block group indication information is carried by using RMSI
  • the 4-bit synchronization signal block indication information is carried by using an MIB.
  • the synchronization signal block group indication information and the synchronization signal block indication information are both carried by using MIB.
  • the synchronization signal block group indication information and the synchronization signal block indication information are carried by using RMSI.
  • the terminal device determines, based on the synchronization signal block indication message, the synchronization signal block group sent by the network device and the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device.
  • the terminal device After receiving the synchronization signal block indication message sent by the network device, the terminal device determines, based on the synchronization signal block indication message, the synchronization signal block group sent by the network device and the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device. In the specific implementation process, the terminal device may specifically determine, by parsing the synchronization signal block indication message, the synchronization signal block group sent by the network device and the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device. The specific implementation process is already described in detail in step 310. Details are not described herein again.
  • the network device indicates, by using the synchronization signal block indication message, the synchronization signal block group sent by the network device and the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device. Because the locations of a synchronization signal block sent by the network device in synchronization signal block groups sent by the network device are the same, the terminal device may determine, based on the synchronization signal block indication message, all the synchronization signal block(s) sent by the network device, to successfully receive the synchronization signal block(s).
  • FIG. 4 is a schematic logical structural diagram of a network device 400 according to an embodiment of the present invention.
  • the network device may be, for example, but is not limited to, the network device 102 in FIG. 1 .
  • the network device includes a generation module 410 and a sending module 420.
  • the generation module 410 is configured to generate a synchronization signal block indication message.
  • the synchronization signal block indication message includes synchronization signal block group indication information and synchronization signal block indication information.
  • the synchronization signal block group indication information is used to indicate a synchronization signal block group sent by the network device.
  • the synchronization signal block indication information is used to indicate a synchronization signal block sent by the network device in each synchronization signal block group sent by the network device. Locations of a synchronization signal block sent by the network device in synchronization signal block groups sent by the network device are the same.
  • the sending module 420 is configured to send the synchronization signal block indication message.
  • FIG. 5 is a schematic logical structural diagram of a terminal device 500 according to an embodiment of the present invention.
  • the terminal device may be, for example, but is not limited to, the network devices 104, 106, 108, 110, 112 and 114 in FIG. 1 .
  • the terminal device 500 includes a receiving module 510 and a determining module 520.
  • the receiving module 510 is configured to receive a synchronization signal block indication message.
  • the synchronization signal block indication message includes synchronization signal block group indication information and synchronization signal block indication information.
  • the synchronization signal block group indication information is used to indicate a synchronization signal block group sent by the network device.
  • the synchronization signal block indication information is used to indicate a synchronization signal block sent by the network device in each synchronization signal block group sent by the network device. Locations of synchronization signal block sent by the network devices in synchronization signal block groups sent by the network device are the same.
  • the determining module 520 is configured to determine, based on the synchronization signal block indication message, the synchronization signal block group sent by the network device and the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device.
  • FIG. 6 is a schematic structural hardware diagram of a network device 600 according to an embodiment of the present invention.
  • the network device 600 includes a processor 602, a transceiver 604, a plurality of antennas 606, a memory 608, an I/O (input/output, Input/Output) interface 610, and a bus 612.
  • the transceiver 604 further includes a transmitter 6042 and a receiver 6044.
  • the memory 608 is further configured to store an instruction 6082 and data 6084.
  • the processor 602, the transceiver 604, the memory 608, and the I/O interface 610 are in communication connection by using the bus 612.
  • the plurality of antennas 606 and the transceiver 604 are connected to each other.
  • the processor 602 may be a general purpose processor, for example, but not limited to, a central processing unit (Central Processing Unit, CPU), or may be a dedicated processor, for example, but not limited to, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application-Specific Integrated Circuit, ASIC), or a field programmable gate array (Field Programmable Gate Array, FPGA).
  • the processor 602 may alternatively be a combination of a plurality of processors.
  • the processor 602 may be configured to perform, for example, step 310 in FIG. 3 , and the operations performed by the generation module 410 in the network device 400 shown in FIG. 4 .
  • the processor 602 may be a processor specially designed for performing the foregoing steps and/or operations, or may be a processor that performs the foregoing steps and/or operations by reading and executing the instruction 6082 stored in the memory 608.
  • the processor 602 may need to use the data 6084 in the process of performing the foregoing steps and/or operations.
  • the transceiver 604 includes the transmitter 6042 and the receiver 6044.
  • the transmitter 6042 is configured to send a signal by using at least one of the plurality of antennas 606.
  • the receiver 6044 is configured to receive a signal by using at least one of the plurality of antennas 606.
  • the transmitter 6042 may be specifically configured to perform, for example, step 320 in FIG. 3 , and the operations performed by the sending module 420 in the network device 400 shown in FIG. 4 , by using at least one of the plurality of antennas 606.
  • the memory 608 may be various types of storage mediums, for example, a random-access memory (Random Access Memory, RAM), a read-only memory (Read-Only Memory, ROM), a non-volatile RAM (Non-Volatile RAM, NVRAM), a programmable ROM (Programmable ROM, PROM), an erasable PROM (Erasable PROM, EPROM), an electrically erasable PROM (Electrically Erasable PROM, EEPROM), a flash memory, an optical memory, and a register.
  • the memory 608 is specifically configured to store the instruction 6082 and the data 6084.
  • the processor 602 may perform the foregoing steps and/or operations by reading and executing the instruction 6082 stored in the memory 608, and may need to use the data 6084 in the process of performing the foregoing steps and/or operations.
  • the I/O interface 610 is configured to: receive an instruction and/or data from a peripheral device, and output an instruction and/or data to the peripheral device.
  • the network device 600 may further include other hardware devices, which are not further listed in this specification.
  • FIG. 7 is a schematic structural hardware diagram of a terminal device 700 provided in an embodiment of the present invention.
  • the device 700 includes a processor 702, a transceiver 704, a plurality of antennas 706, a memory 708, an I/O (input/output, Input/Output) interface 710, and a bus 712.
  • the transceiver 704 further includes a transmitter 7042 and a receiver 7044.
  • the memory 708 is further configured to store an instruction 7082 and data 7084.
  • the processor 702, the transceiver 704, the memory 708, and the I/O interface 710 are in communication connection by using the bus 712.
  • the plurality of antennas 706 and the transceiver 704 are connected to each other.
  • the processor 702 may be a general purpose processor, for example, but not limited to, a central processing unit (Central Processing Unit, CPU), or may be a dedicated processor, for example, but not limited to, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application-Specific Integrated Circuit, ASIC), or a field programmable gate array (Field Programmable Gate Array, FPGA).
  • the processor 702 may alternatively be a combination of a plurality of processors.
  • the processor 702 is configured to perform, for example, step 330 in FIG. 3 , and the operations performed by the determining module 520 in the terminal device 500 shown in FIG. 5 .
  • the processor 702 may be a processor specially designed for performing the foregoing steps and/or operations, or may be a processor that performs the foregoing steps and/or operations by reading and executing the instruction 7082 stored in the memory 708.
  • the processor 702 may need to use the data 7084 in the process of performing the foregoing steps and/or operations.
  • the transceiver 704 includes the transmitter 7042 and the receiver 7044.
  • the transmitter 7042 is configured to send a signal by using at least one of the plurality of antennas 706.
  • the receiver 7044 is configured to receive a signal by using at least one of the plurality of antennas 706.
  • the receiver 7044 may be specifically configured to perform, for example, the operations performed by the receiving module 510 in the terminal device 500 shown in FIG. 5 , by using at least one of the plurality of antennas 706.
  • the memory 708 may be various types of storage mediums, for example, a random-access memory (Random Access Memory, RAM), a read-only memory (Read-Only Memory, ROM), a non-volatile RAM (Non-Volatile RAM, NVRAM), a programmable ROM (Programmable ROM, PROM), an erasable PROM (Erasable PROM, EPROM), an electrically erasable PROM (Electrically Erasable PROM, EEPROM), a flash memory, an optical memory, and a register.
  • the memory 708 is specifically configured to store the instruction 7082 and the data 7084.
  • the processor 702 may perform the foregoing steps and/or operations by reading and executing the instruction 7082 stored in the memory 708, and may need to use the data 7084 in the process of performing the foregoing steps and/or operations.
  • the I/O interface 710 is configured to: receive an instruction and/or data from a peripheral device, and output an instruction and/or data to the peripheral device.
  • the terminal device 700 may further include other hardware devices, which are not further listed in this specification.
  • the communications system includes any one of the foregoing network devices and any one of the foregoing terminal devices.
  • the chip system includes a processor, configured to support the foregoing network device in implementing a function related to the network device, for example, generating or processing data and/or information in the foregoing method embodiment.
  • the chip system further includes a memory.
  • the memory is configured to store a program instruction and data necessary to the network device.
  • the chip system may include a chip, or may include a chip and another discrete device.
  • the chip system includes a processor, configured to support the foregoing terminal device in implementing a function related to the terminal device, for example, receiving or processing data and/or information in the foregoing method embodiment.
  • the chip system further includes a memory.
  • the memory is configured to store a program instruction and data necessary to the terminal device.
  • the chip system may include a chip, or may include a chip and another discrete device.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a dedicated computer, a computer network, or another programmable apparatus.
  • the computer instructions may be stored in a computer readable storage medium or may be transmitted from a computer readable storage medium to another computer readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center to another website, computer, server, or data center in a wired (for example, a coaxial cable, an optical fiber, or a digital subscriber line (DSL)) or wireless (for example, infrared, radio, or microwave) manner.
  • a wired for example, a coaxial cable, an optical fiber, or a digital subscriber line (DSL)
  • wireless for example, infrared, radio, or microwave
  • the computer readable storage medium may be any usable medium accessible by a computer, or a data storage device, such as a server or a data center, integrating one or more usable mediums.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, or a magnetic tape), an optical medium (for example, a DVD), a semiconductor medium (for example, a solid state disk (Solid State Disk, SSD)), or the like.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the described apparatus embodiment is merely an example.
  • the unit division is merely logical function division and may be other division in actual implementation.
  • a plurality of units or components may be combined or integrated into another system, or some features may be ignored or not performed.
  • the displayed or discussed mutual couplings or direct couplings or communication connections may be implemented by using some interfaces.
  • the indirect couplings or communication connections between the apparatuses or units may be implemented in electronic, mechanical, or other forms.
  • the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • functional units in the embodiments of this application may be integrated into one processing unit, or each of the units may exist alone physically, or two or more units are integrated into one unit.
  • the integrated unit may be implemented in a form of hardware, or may be implemented in a form of a software functional unit.
  • the integrated unit When the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, the integrated unit may be stored in a computer readable storage medium. Based on such an understanding, the technical solutions of this application essentially, or the part contributing to the prior art, or all or a part of the technical solutions may be implemented in the form of a software product.
  • the software product is stored in a storage medium and includes several instructions for instructing a computer device (which may be a personal computer, a server, or a network device) to perform all or a part of the steps of the methods described in the embodiments of this application.
  • the foregoing storage medium includes: any medium that can store program code, such as a USB flash drive, a removable hard disk, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk, or an optical disc.
  • program code such as a USB flash drive, a removable hard disk, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk, or an optical disc.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Claims (15)

  1. Procédé d'indication de bloc de signal de synchronisation, dans lequel le procédé comprend :
    la génération (310), par un dispositif réseau, d'un message d'indication de bloc de signal de synchronisation, le message d'indication de bloc de signal de synchronisation comprenant des informations d'indication de groupe de bloc de signal de synchronisation et une table de bits de bloc de signal de synchronisation, les informations d'indication de groupe de bloc de signal de synchronisation étant utilisées pour indiquer un ou plusieurs groupes de bloc de signal de synchronisation d'une pluralité de groupes de bloc de signal de synchronisation, chaque groupe de bloc de signal de synchronisation comprenant un ou plusieurs blocs de signal de synchronisation, le ou les blocs de signal de synchronisation étant envoyés par le dispositif réseau, la table de bits du bloc de signal de synchronisation étant utilisée pour indiquer un ou plusieurs blocs de signal de synchronisation envoyés par le dispositif réseau dans chacun du ou des groupes de bloc de signal de synchronisation ; et
    l'envoi (320), par le dispositif réseau, du message d'indication de bloc de signal de synchronisation, le groupe de bloc de signal de synchronisation étant une rafale de signal de synchronisation.
  2. Procédé d'indication de bloc de signal de synchronisation, dans lequel le procédé comprend :
    la réception (320), par un dispositif terminal, d'un message d'indication de bloc de signal de synchronisation, le message d'indication de bloc de signal de synchronisation comprenant des informations d'indication de groupe de bloc de signal de synchronisation et une table de bits de bloc de signal de synchronisation, les informations d'indication de groupe de bloc de signal de synchronisation étant utilisées pour indiquer un ou plusieurs groupes de bloc de signal de synchronisation d'une pluralité de groupes de bloc de signal de synchronisation, chaque groupe de bloc de signal de synchronisation comprenant un ou plusieurs bloc de signal de synchronisation, le ou les blocs de signal de synchronisation étant envoyés par le dispositif réseau, la table de bits du bloc de signal de synchronisation étant utilisée pour indiquer un ou plusieurs bloc de signal de synchronisation envoyés par le dispositif réseau dans chacun du ou des groupes de bloc de signal de synchronisation ; et
    la détermination (330), par le dispositif terminal sur la base du message d'indication de bloc de signal de synchronisation, du ou des groupes de bloc de signal de synchronisation envoyés par le dispositif réseau et du ou des blocs de signal de synchronisation envoyés par le dispositif réseau dans chacun du ou des groupes de bloc de signal de synchronisation,
    le groupe de bloc de signal de synchronisation étant une rafale de signal de synchronisation.
  3. Appareil, dans lequel l'appareil comprend :
    un module de génération (410), configuré pour générer un message d'indication de bloc de signal de synchronisation, le message d'indication de bloc de signal de synchronisation comprenant des informations d'indication de groupe de bloc de signal de synchronisation et une table de bits de bloc de signal de synchronisation, les informations d'indication de groupe de bloc de signal de synchronisation étant utilisées pour indiquer un ou plusieurs groupes de bloc de signal de synchronisation d'une pluralité de groupes de bloc de signal de synchronisation, chaque groupe de bloc de signal de synchronisation comprenant un ou plusieurs blocs de signal de synchronisation, le ou les blocs de signal de synchronisation étant envoyés par un dispositif réseau, la table de bits du bloc de signal de synchronisation étant utilisée pour indiquer un ou plusieurs blocs de signal de synchronisation envoyés par le dispositif réseau dans chacun du ou des groupes de bloc de signal de synchronisation ; et
    un module d'envoi (420), configuré pour envoyer le message d'indication de bloc de signal de synchronisation,
    le groupe de bloc de signal de synchronisation étant une rafale de signal de synchronisation.
  4. Appareil, dans lequel l'appareil comprend :
    un module de réception (510), configuré pour recevoir un message d'indication de bloc de signal de synchronisation, le message d'indication de bloc de signal de synchronisation comprenant des informations d'indication de groupe de bloc de signal de synchronisation et une table de bits de bloc de signal de synchronisation, les informations d'indication de groupe de bloc de signal de synchronisation étant utilisées pour indiquer un ou plusieurs groupes de bloc de signal de synchronisation d'une pluralité de groupes de bloc de signal de synchronisation, chaque groupe de bloc de signal de synchronisation comprenant un ou plusieurs blocs de signal de synchronisation, le ou les blocs de signal de synchronisation étant envoyés par un dispositif réseau, la table de bits du bloc de signal de synchronisation étant utilisée pour indiquer un bloc de signal de synchronisation envoyé par le dispositif réseau dans chacun du ou des groupes de bloc de signal de synchronisation ; et
    un module de détermination (520), configuré pour déterminer, sur la base du message d'indication de bloc de signal de synchronisation, le ou les groupes de bloc de signal de synchronisation envoyés par le dispositif réseau et le ou les blocs de signal de synchronisation envoyés par le dispositif réseau dans chacun du ou des groupes de blocs de signal de synchronisation envoyés par le dispositif réseau,
    le groupe de bloc de signal de synchronisation étant une rafale de signal de synchronisation.
  5. Procédé selon la revendication 1 ou 2, ou appareil selon la revendication 3 ou 4, dans lequel les informations d'indication de groupe de bloc de signal de synchronisation comprennent des informations de quantité et des informations de configuration du ou des groupes de bloc de signal de synchronisation envoyés par le dispositif réseau, la quantité les informations sont utilisées pour indiquer une quantité m de groupes de bloc de signal de synchronisation envoyés par le dispositif réseau, et les informations de configuration sont utilisées pour indiquer si les groupes de bloc de signal de synchronisation envoyés par le dispositif réseau sont les m premiers groupes de bloc de signal de synchronisation ou les m derniers groupes de bloc de signal de synchronisation de tous les groupes de bloc de signal de synchronisation.
  6. Procédé selon la revendication 1 ou 2, ou appareil selon la revendication 3 ou 4, dans lequel les informations d'indication de groupe de bloc de signal de synchronisation sont une table de bits, et la table de bits est utilisée pour indiquer le ou les groupes de bloc de signal de synchronisation envoyés par le dispositif réseau.
  7. Procédé selon la revendication 6, ou appareil selon la revendication 6, dans lequel la table de bits du groupe de bloc de signal de synchronisation comprend 8 bits.
  8. Procédé selon la revendication 1 ou 2, ou l'appareil selon 3 ou 4, dans lequel la table de bits de bloc de signal de synchronisation comprend 8 bits.
  9. Procédé selon l'une quelconque des revendications 1 ou 5 à 8, ou procédé selon l'une quelconque des revendications 2 ou 5 à 8, ou appareil selon l'une quelconque des revendications 3 ou 5 à 8, ou appareil selon l'une quelconque des revendications 4 à 8, dans lequel les informations d'indication de groupe de bloc de signal de synchronisation sont transportées à l'aide d'un bloc d'informations maître MIB, et les informations d'indication de bloc de signal de synchronisation sont transportées à l'aide des informations système restantes RMSI ; ou
    les informations d'indication de groupe de bloc de signal de synchronisation sont transportées à l'aide des RMSI, et les informations d'indication de bloc de signal de synchronisation sont transportées à l'aide d'un MIB ; ou les informations d'indication de groupe de bloc de signal de synchronisation et les informations d'indication de bloc de signal de synchronisation sont transportées à l'aide d'un MIB ; ou
    les informations d'indication de groupe de bloc de signal de synchronisation et les informations d'indication de bloc de signal de synchronisation sont transportées à l'aide des RMSI.
  10. Appareil selon l'une quelconque des revendications 3 ou 5 à 9, ou appareil selon l'une quelconque des revendications 4 à 9, dans lequel l'appareil est une puce.
  11. Appareil selon l'une quelconque des revendications 3 ou 5 à 9, dans lequel l'appareil est un dispositif réseau (102).
  12. Appareil selon l'une quelconque des revendications 4 à 9, dans lequel l'appareil est un dispositif terminal (104, 106, 108, 110, 112, 114).
  13. Système de communications (100), dans lequel le système de communications comprend :
    le dispositif réseau (102) selon la revendication 10 ; et
    le dispositif terminal (104, 106, 108, 110, 112, 114) selon la revendication 11.
  14. Support de stockage lisible par ordinateur, dans lequel le support de stockage lisible par ordinateur stocke une instruction, et lors de son exécution sur un ordinateur, l'instruction amène l'ordinateur à effectuer le procédé selon l'une quelconque des revendications 1 ou 5 à 9, ou le procédé selon l'une quelconque des revendications 2 ou 5 à 9.
  15. Produit-programme informatique, dans lequel le produit-programme informatique comprend une instruction, et lors de son exécution sur un ordinateur, l'instruction amène l'ordinateur à effectuer le procédé selon l'une quelconque des revendications 1 ou 5 à 9, ou le procédé selon l'une quelconque des revendications 2 ou 5 à 9.
EP18845178.5A 2017-08-11 2018-07-13 Procédé de détermination et procédé d'indication de bloc de signaux de synchronisation, dispositif de réseau et dispositif terminal Active EP3667995B1 (fr)

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CN201710687868.7A CN109391443B (zh) 2017-08-11 2017-08-11 同步信号块指示及确定方法、网络设备和终端设备
PCT/CN2018/095567 WO2019029315A1 (fr) 2017-08-11 2018-07-13 Procédé de détermination et procédé d'indication de bloc de signaux de synchronisation, dispositif de réseau et dispositif terminal

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EP (1) EP3667995B1 (fr)
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CN109391443B (zh) * 2017-08-11 2021-12-14 华为技术有限公司 同步信号块指示及确定方法、网络设备和终端设备
WO2019159291A1 (fr) * 2018-02-15 2019-08-22 株式会社Ｎｔｔドコモ Terminal d'utilisateur, et procédé de communications sans fil
US11490369B2 (en) * 2019-03-20 2022-11-01 Qualcomm Incorporated Resource management for multi-hop networks
CN114402675A (zh) * 2019-11-08 2022-04-26 Oppo广东移动通信有限公司 资源占用位置确定方法、装置、终端设备及存储介质

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EP1273111B9 (fr) 2000-04-07 2007-06-27 Interdigital Technology Corporation Synchronisation de station de base pour systemes de communication sans fil
JP5046317B2 (ja) * 2006-04-27 2012-10-10 住友電気工業株式会社 受信機、送信機、伝送システム、及び伝送方法
CN101047428B (zh) * 2006-05-26 2010-12-15 华为技术有限公司 支持多模基站时钟同步信号传送的装置和方法
EP2092791B1 (fr) * 2006-10-13 2010-08-04 Galaxy Studios NV Procédé et codeur pour combiner des ensembles de données numériques, procédé de décodage et décodeur pour de tels ensembles de données numériques combinés et support d'enregistrement pour stocker un tel ensemble de données numériques
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WO2016045704A1 (fr) * 2014-09-23 2016-03-31 Huawei Technologies Co.,Ltd Émetteur, récepteur et procédés permettant de transmettre/recevoir des signaux de synchronisation
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US11509440B2 (en) 2022-11-22
CN109348535A (zh) 2019-02-15
EP3667995A4 (fr) 2020-09-02
MX2020001641A (es) 2020-08-03
CN109391443B (zh) 2021-12-14
EP3667995A1 (fr) 2020-06-17
WO2019029315A1 (fr) 2019-02-14
CN109067510A (zh) 2018-12-21
RU2020109649A (ru) 2021-09-14
KR20200035132A (ko) 2020-04-01
KR102397865B1 (ko) 2022-05-13
RU2020109649A3 (fr) 2021-12-22
US20200177345A1 (en) 2020-06-04
CN109067510B (zh) 2019-11-05
CN109348535B (zh) 2019-10-22

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